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J. M. PARKER. MACHINE FOR AUTOMATICALLY TURNING ROBBINS, SPOOLS, am. No. 519,967. Patented May15, 1894.

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J. M. PARKER. MACHINE FOB. AUTOMATICALLY TURNING BOBBINS, SPOOLS, &0. No. 519,967. Patented May 15,1894.

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(No Model.) 6 Sheets-Sheet 3.

' J. M. PARKER. MACHINE FOB AUTOMATICALLY TURNING BOBBINs, SPOOLS, 8:0.

No. 519,967. Patented May 15,1894.

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J. M. PARKER. MACHINE FOR AUTOMATICALLY TURNING BOBBINS, SPOOLS, &c. No. 519,967. Patented May 15,1894.

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6 Sheets-Sheet 5.

(No Model.)

J. M. PARKER. MACHINE FOR AUTOMATICALLY TURNING ROBBINS, srooLs. m.

Patepfggd May 15, 1894.

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6 Sheets-Sheet 6.

(No Model.)

J. M. PARKER. MACHINE FOR AUTOMATICALLY TURNING ROBBINS, SPOOLS, 850. No. 519,967. Patented May 15,1894.

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UNITED STATES PATENT OFFICE.

JOHN M. PARKER, OF PAWTUCKET, RHODE ISLAND.

MACHINE FOR AUTOMATICALLY TURNING BOBBINS, SPOOLS, &c.

SPECIFICATION forming part of Letters Patent No. 519,967, dated May 15, 1894.

Application filed May 8,1893. Serial No. 473,418. (No model.)

To aZZ whom, it may concern.-

Be it known that I, JOHN M. PARKER, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Machines for Automatically Turning Bobbins,Spools,&c.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,referencebeinghadtotheaccompanyiug drawings, and to letters of reference marked thereou,which form a part of this specification.

The machine forming the subject of my present invention is for automatically turning wooden bobbin-blanks; audit consists essentially in the combination of devices or instrumentalities, substantially as hereinafter described, whereby I am enabled to produce bobbins in a much more expeditious, inexpensive and perfect manner than heretofore.

It has been usual hitherto in the produc tion of wooden bobbins, especially such as are termed roving-bobbins, to employ a common form of turninglathe and requiring the services of an attendant to place and center the bobbin-blau ks singly therein, then to turn the blank by passing the cutting tool across it a number of times and finally to remove the turned blank from the machine. It is obvious that at best such a way of producing bobbins must be comparatively slow and correspondingly expensive, at the same time the bobbins thus made are lacking in uniformity.

The object I have in view is to mechanically and automatically produce bobbins of the class referred to by means of adj ustably mounted instrumentalities; the machine being so complete and self-contained that attendance is required simply to keep it supplied with blanks; one person easily tending four machines.

My invention can best be explained and understood by reference to the accompany ng drawings,in connection with the description following the same, in wl1ich- Figure 1, Sheet 1, represents a front elevation of the machine, as in use. Fig. 2, Sheet 2, is a rear elevation of the same. -Fig. 3, Sheet 3, is an end view, viewed from the left side of the machine. Fig. t is a vertical transverse sectional view, taken on line a: as of Fig. 1, looking toward the right. Fig. 5, Sheet 4., is a partial plan view, on an enlarged scale. Fig. 6 is a partial plan View of the finishing knives, &c., at the instant of completing the bobbin. Fig. 7 is a transverse sectional view, taken on line '11 y of Fig. 6. Fig. 8 is an end View of the finishing knife. Fig. 9 represents views of the roughly shaped bobbin-blank as it is fed to the cutters. Fig. 10 represents the completely finished bobbin made therefrom. Fig. 11, Sheet 5, is a partial sectional view, taken through the longitudinal center of the machine, corresponding with Fig. 1, and showing the bobbin-centering spindles and their operating mechanisms. Fig. 12 is a partial transverse sectional view,

taken on line a; r of Fig. 1, showing the feeding.

device, looking toward the left. Fig. 13 is an end view of the device for controlling the stroke of the feeder. Fig. 14 is an end view, enlarged, of the front spindle. Fig. 15 is a partial longitudinal sectional view of the same, taken on line as mof Fig. 14. Fig. 16 is apartial sectional view, showing the spring-fingers depressed and in engagement-with the finished bobbin, preparatory to removing it from the centering spindles. Fig. 17 is a sectional view through as as of Fig. 2. Fig. 18, Sheet 6, is a partial plan view of the machine, showing the relation of the blank placing and bobbin removing fingers to the centering spindle, the, while the cutters are at work,and Fig. 19 is a partial sectional view similar to Fig. 11, but showing in reduced scale the vertical shaft, carrying the several spring-fingers, depressed, as for example, when the two sets of fingers are in the act of simultaneously seizing a blank and finished bobbin preparatory to elevating and rotating the shaft so as to place the blank between the spiudle-centers and removing the finished bobbin from the machine.

My improved bobbin-making machine, as a whole, is indicated by A. It is provided with a suitable bed a and supporting legs a, a To the right-hand end of the bed is socured the head-stock b in which revolves the driving-spindle b; the latter being operated through the medium of a continuously running belt I) and pulley 12 in a well-known manner. The inner end of the live spindle is provided with a well-rounded center e (Figs.

14, 15, &c.) to receive and center one end of the bobbin-blank z, and is further provided with a series of short spur-dogs e adapted to be embedded into the said bobbin-end, thereby rotating the blank in unison with the spindle. A sliding collar e is mounted on keys e let into the said spur-carrying end portion of the spindle; the former being actuated back and forth upon the spindle by means of the intermittingly movingspring-resisted arm 6 secured to the horizontally mounted nonrotating shaft d, as shown in Fig. 11. It will be seen that upon advancing the collar, as inv use, the forward end of the keys will engage the wooden blank, or bobbin, and force it from the spurs-and center, thus disengaging it from the spindle.

To'the opposite or left side of the bed is secured the tail-stock c in which is mounted the dead center or tail-spindle c. The inner end of this spindle is provided with a removable center 0 whose end is rounded, as at 6 to receive and center thereon the corresponding end of the bobbin-blank. The spindle c is arranged to be moved endwise but is prevented from rotating by means of the screw or'pin 0 the end of which is in engagement with a spline formed in the spindle. The outer end of the spindle is screw-threaded and carries a collar-nut (1 the latter being in engagement with apivotally mounted camactuated lever g.

Tothe outer or rear end of the shaft d, before referred to, is secured an upwardly extending arm d carrying an adjustable stop d and the rod or stem at, the latter extending into the bore 0 formed in the tail-spindle, all as clearly shown in Fig. 11. The rod 61 serves as a guide to prevent the shaft d from rotating. The bobbins are released from the centers by first forcing the spindle 0 rearwardly, through the medium of the lever g (Fig. 1), until the collar (1 engages the stop d thereby withdrawing the center 0 from that end of the bobbin; the continued rearward movementrof the spindle imparts a corresponding movement to the shaft (1 and causes the arm 6, secured to the opposite end thereof, to move the collar or sleeve e endwise upon the live-spindle until the ends of the collar-keys 6 project beyond it, thereby detaching the'bobbin from the spurs e and center e. The spring d operates to return the collar eto its normal position, in conjunction with the cam 9 hereinafter described.

The tail-stock may be adjusted longitudinally of the bed to accommodate bobbins varying in length; the holding-down bolt 0 serving to retain it in position after'adjustment.

The main driving arrangement is well represented in Figs. 1 and 3, wherein a quick moving main belt 19 firstpasses over guide pulleys b onto the double driving pulleys 71., both loosely mounted on a slower revolvingshaf t 71 A train of suitably mounted compound gears h, 71 ,71 h, operated from said pulley reduces the speed in a well-known manner; that is the blast gear 71 of the train is secured to the said shaft h which latter revolves in a bearing r supported by the leg extension a Revolving in unison with the gear h is a cylinder in the periphery of which is formed a camgroove 9 having a roll 9' arranged to work therein. This roll is mounted in the lower end of the pivoted lever g which engages the collar-nut d before described; the fornf'of the cam being such that while making one revolution, it will produce a double-reciprocation of the tail-spindle c.

To the forward, or right, end of the driving-shaft h is secured a camj for feeding or operating the series of main or roughing cutters m; the cam being so formed that it advances the cutters at a substantially uniform rate of speed (as when at work) and then quickly returns them to the normal position. The cutters are each adjustably secured to a holder m jointed to a carrierm loosely mounted on a rod 2" which in turn is mounted to reciprocate in a bearing 1;, see Figs. 1, 4 and 5. Said carrier is prevented from moving endwise upon the rod by means of adjustably secured collars m", the latter as drawn also securing the springs m, in position. As thus constructed each cutter is independent of its neighbor both in adjustment and action. The rod 1" is actuated to and fro by the arm or lever 11, links 2' t and the roll i bearing against the cam-face. Contact of the parts i andj is effected bya suspended weight r attached to a chain i passing over a sprocket-wheel 7" secured to a shaft 0", as clearly shown in Fig. 1.

Each cutter m when in use is in yielding contact with the bobbin-blank. This is effected by means of a spring m secured to the collar in, whose free end presses downwardly againsta pin m secured to the side of the corresponding holder 171 Figs. 4 and 5.

In order to produce uniformity inthe size and shape of the bobbins I provide the machine with a fixed cam or gage-platen, the same being located below but in front of the blank; the ends of the plate are tapped to receive two vertically mounted adjusting screws 19; the upper ends of which are constructed to receive an operating wrench or handlepi The upper face or edge of the plate about to be described.

to revolve.

To the left or rear end portion of the machine, in, front, is mounted an endless double chain or carrier f composed of suitably spaced linksf' arranged and adapted to the bobbinblanks a.

As drawn the services of an attendant are only required to properly place the blanks uponthe traveling chain. It will be seen that the blanks have a central hole and are roughly shaped exterior-1y, one end being somewhat larger in diameter than the other. A bracket f is secured to the tail-stock c and is provided transversely with two adjustable or screw-threaded rods f; the forward rod carries at each end a bent arm f in the upper end of which is journaled a shaft 7""; to the latter are secured suitable driving wheels which carry the chain f and also the said ratchet-wheel T the pawl-carrying arm r being loosely mounted thereon. The rear rod f is also provided with shaft-carrying arms J; the shaft having chain-wheels as before described. From this it will be seen that the action of the cam j in feeding the cutters m ahead along'the centered and revolving bobbin-blank also operates, through the medium of the chain 2' rod r &c., to depress the free end of the pawl-carrying arm T thereby rotating the shaft 4" and correspondingly advancing the feed-chain f to place the next succeeding blank to be operated upon in position. By means of the screw-threaded rods f 3 the carrier chaiu may be adjusted laterally to bobbin-blanks varying in length.

; At the back of the camj is mounted adisk 7", Figs. 1, t, &c., having a cam-groove formed in its face in which a roll attached to the pivotally mounted vertical lever 7c is adapted This cam and lever are employed to actuate the finishing cutters mounted on a carriaget arranged to move to and fro crosswise of the machine, see Fig. at.

The carriage is provided with downwardly extending ears in which an end of the operating rod or connection Z is pivoted; the other end of said rod being adjustably secured to a swivel block or collar jointed to the upper forked end of the lever 7t. A carriage t is gibbed to the bed at below the centered blank a; the upper front side of said carriage is provided with ears to which is pivoted, at Z, the frame 15', the top face of the latter having the tool carriage t fitted to slide thereon. The rear portion of the frame 25' is susceptible of adjustment in a vertical direction by means of the screw 25 tapped into an ear 2 of the carriage t An important feature of my invention resides in the novel form and arrangement of the main finishing cutter it. This cutter is adjustably secured by bolts 10 to a holder u gibbed to the carriage t. The holder maybe adjusted longitudinally of the machine by means of an adjusting screw 6 located at the forward end of the carriage, the, see Fig. 5. The front or working edge 165 of the cutter u is formed at an angle, while the adjacent under sideis beveled thus forming a sharp edge, having a shear action in use.

It will be seen, referring to Figs. 6 and 10, that the finished bobbin a is provided with a small head {2 at one end; the opposite end a being enlarged and substantially cylindrical in form, its union with the barrel proper being a well-curved fillet. Now in order to adapt the cutter u to act upon the entire surface of the bobbin and give to it the shape required, I provide the upper face of the cutter with a corresponding contour, see Figs. (land 8; the Width of the cutter exceeding the length of the bobbin. That is to say the grooved portion 1; of the cutter finishes the bead part a of the bobbin, the curved portion o the filleted part and the flat portions of the cutter act upon the cylindrical parts of the bobbin. Practically the cutter is so ground and adjusted that in operation it first engages the under side of the largest, or bottom, end of the rapidly revolving bobbin, the "forward movement of the cutter being continued until its grooved end passes the axis or center of the bobbin, as in Figs. 6 and 7.

To one side of the cutter -holder u is formed a vertical extension a in which two cutters are adjustably secured. These cuttors are so arranged that they commence to act upon the enlarged end 5 of the bobbin at about the same instant the finishing cutter u completes its work. The enter one a of the two cutters is employed to chamfer the end of the bobbin, as at 2 the other cutter u forming the usual groove or score 2 see Figs. (3 and 7.

The form and arrangement of the cams j and j are such that the carriage t remains substantially stationary or in its normal position while the cutters m rough-turn the blank, the cam-shaft 71. meanwhile making say one-half a revolution. Theaction of the rotating cam-shaft and cam j coacting with the weight 9' next quickly returns the roughing cutters to the normal position, or to the extreme left; the rotation of the shaft at the same time causing the cam j, lever 70, &c.,to advance the carriage t, thus engaging the finishing cutters with the blank; the completion of the revolution operates to return the carriage, &c.,to the initial position. While this latter movement is taking place the mechanism about to be described for removing the too finished bobbin 2 from the machine and reother and adapted to be vibrated in different horizontal planes. That is to say, the upper rod 3' and attached fingers are adapted to pick up the blanks singly from the carrier and place it in position to be clamped by the driving-spindle; the lower rod 8 with its set of fingers being employed to remove the finished bobbins from the spindle and deposit them in a conveniently located receptacle. These rods are fixed in holders or heads secured to the vertically mounted shaft 5 as clearly shown. This shaft is automatically moved both axially and vertically in an intermittent manner. The vertical movement of the shaft is effected through the medium of a counter weighted cam-actuated lever 41, (Fig. i)- fulcrumed at n to the log a; the shaft proper being swivel-jointed at its lower end to a bent link 8 which in turn is jointed to the rear end of the lever, see also Fig. 11. The opposite end of the lever is provided with a roll 71' in constant engagement with the cam 71 secured to shaft k The axial movement of the shaft 3 is accomplished by means of a horizontally guided connection 19' secured to the upper or forked end of the carriage-operating lever 7c; said connection extends transversely across the machine and is jointed at its rear end to a dog p (Fig. 5) working at the back of the guided rack-bar 19 said bar in turn carrying an adjustable stop-dogp at each end between which the dog 19 is adapted to travel to and fro in unison with the cutter-carrying carriage.

From the foregoing it is obvious that an intermittent reciprocating movement is imparted to the bar 19 through the medium of the dogs, the distance thus traveled being regulated as desired by the position of the stops 1). Meshing into the rack-teeth is a small gear-wheel p keyed to the shaft 8 the arrangement being such that the latter is rotated intermittingly coincident with the bars movement. The gear is non-movable endwise and is mounted in a boss or extension of the base a, see Figs. 11, 17, &c.; the arrangement being such that the splined shaft is adapted to slide freely up and down through the gear.

The vertical shaft 5 in its partly depressed position, is represented in Fig. 19; wherein the blank-placing fingers s, of the shaft or rod 3',

are shown in the act of lifting a blank from the carrier, while at the same time the other series of spring-fingers, mounted on the rod 8 are in engagement with the last-finished bobbin, still held between the spindle centers.

The operation of the machineis entirely automatic and is substantially as follows,- first assuming that the endless carrier f is supplied with a number of bobbin-blanks z, and that the last-completed bobbin is still revolving on the center or driving-spindle; the removing fingers being in position over the bobbin while at the same time the other or blank-placing fingers, mounted on the rod 8', are in position to seize the forward blank. Now, it being further assumed that the c011- tinuous rotation of the shaft h will have brought the cam n into position, the cam-path portion n of the latter causes the Weighted lever 41 to vibrate, thereby quickly dropping the shaft 8 and thus at the same time causing both series of spring-fingers s to be forced down over the barrels of the respective bobbins, and into the recess or jaw-portions; it being understood that the upper rod 8 car ries the feeding fingers and the lower one s the removing fingers. See corresponding position, represented byfull lines in Fig. 19. While the shaft and fingers are in the thus depressed position, the rotating cam g operating through the lever g, 850., quickly detaches the dead spindle c from the bobbin and at the same time causes the spring-resisted arm 6 to slide along the live spindle, thus moving the revolving collar-keys e endwise and forcing the bobbin from the spurs 6 the bobbin then resting in .the fingers. The next action of the cam n, &o., elevates the shaft .9 to its limit, see dotted line position Fig. 19, thereby simultaneously lifting the blankand also the finished bobbin from the respective seats, the lever then being in contact with the raised portion n of the cam. While the operation last described is taking place the cam j through its several connections is returning the cutter-carriage t rearwardly to its normal position; in thus moving rearwardly the guided dog 19 is brought into contact with the previously adjusted rear stop-dog p of the rack-bar at the proper time, thereby forcing the latter rearwardly and thus rotating the vertical shaft 8 and swingin g the horizontal rods s',s rearwardly about ninety degrees, or until arrested by the fixed stop 5 Fig. 11, 850., show the upper rod'provided with a piece 5 adapted to contact with the stop. In order to insure a more uniform movement of the shaft I provide its upper end with a counter-weight s, as represented. It is evident now that the new blank is in position preparatory to being placed in and clamped to the driving spindle; the previously finished bobbin being in position to be removed from the fingers. Figs. 1 and 3 show the corresponding relation of the rods and fingers, the bobbins being omitted. Meanwhile the elevated portion n of the'cam has passed the roll at, the latter then in following the comparatively abrupt depressed path n causes a corresponding descent of the shaft .9 thereby placing and holding the blank in position to be clamped by the spindles, and at the same time carrying the finished bobbin downwardlypast the bent inclined clearer-fi ngers s (the latter shown in Figs. 2 and 3) ad justably secured to a rod 3 fixed to and extending horizontally from the rear side of the tail-stock o. In order that the bobbin may be more readily passed below the hook-shaped ends of the clearers the rod s may be mounted to vibrate slightly on its axis so that when the bobbin engages the upper side of the clearers they will be forced rearwardly, to automatically swing into the normal position IIO again immediately the bobbin has passed under the hook. While the shaft 3 is in substantially thelowest position as just described the cam 9 acts to quickly force the spindle c ahead into engagement with the blank, thus forcing the latter endwise onto the revolving centering tip c, and causing the blank to revolve in unison therewith, the cam further acting to force the spurs e into the blank. At practically the same instant that the new blank becomes centered the advancing side of the reduced portion n of the cam quickly elevates the rear portion of the lever n thereby Withdrawing the fingers from the blank; the other set of fingers at the same time in moving upwardly are forced open by the then stationary bobbin, since it is resisted by the hooked arms 8 thereby detaching it from the fingers whence it drops into any suitably located receptacle. The upward movement of the shaft ceases when the lever roll passes onto the concentric or idle portion n of the cam. Figs. 3, 4, 850., show the corresponding relation of the parts. During the operation last described the cam j, through its connections, advances the initial cutters m, thereby commencing to rough-turn the rapidly revolving blank, the cam at the same time, by means of the chain F, &c., rotating the chainwheel shaft r in the arrow direction (see Fig. 1) thus depressing the vertical rod 0' and causing the pawl r to advance the carrier apron f and place the next succeeding blank in position preparatory to being picked up by the fingers. The continued action of the cam ,9 feeds the cutters across the blank once, thus completing the shaping, and quickly returns them to the normal position, or at the left. Just as the cutters last named have ceased action the cam j, through the lever 7c and connection Z, will have advanced the carriage t and its several finishing cutters into engagement with the blank, thereby also at the same time causing the dog p to engage the forward stop-dog 19 thus advancing the rack-bar and rotating the shaft 8 ninety degrees to bring the several fingers sagaininto position. The

. dotted lines, Fig. 18, indicate the corresponding relation of the rods, fingers, Sac. The final action of the cam last named effects the completion of the bobbin, as to the turning operation; the relation of the cutters thereto then being substantially as represented in Figs. 6 and 7. While the finishing cutters are being retracted the cam 72 in its rotation drops the spring-fingers over the next succeeding blank and the last-finished bobbin (see Fig. 19); the clamping spindles then separate fol lowed by simultaneously lifting the blank and bobbin; swinging them in a horizontal plane; next, dropping the shaft 5 thus placing the blank in position to be clamped by the spindles and passing the bobbin below the clear ers; the succeeding operations hereinbefore described being repeated to complete the bobbin.

Any suitable device may be employed for stopping the machine. In the drawings I have represented a guided belt-shipper bar h provided with teeth intergearingwith a ment-gearsecured to a shaft It"; said shaft having an arm or handle 7L8 secured thereto at its opposite end, by means of which the at tendant can shift the driving belt back and forth on the driving pulley h as desired.

I would state that while practically have found it convenient to employ the instrumentalities illustrated and described and also to follow the order in which they are brought into operation,it is obvious that other equivalent mechanisms may be devised, andI would therefore have it understood that I do not re strict myself to the precise form and arrangement of parts herein shown and described, but claim the right to make such changes or modifications therein as would properly come within the scope of the invention.

I claim as my invention 1. In an organized machine for turning bobbins au tomatieally,blank-centering and holding mechanism, yieldingly mounted and guided roughing cutters, mechanism for propelling the cutters to and fro longitudinally of the centered bobbin-blank, finishing cutters arranged on the opposite side of the machine, mechanism for moving them transversely of and into engagement with the blank after the roughing cutters have completed their work, in combination with an endless carrier provided with seats to rece1ve the blanks, means to propel the carrler nterrnittingly connected with and working 1n un1son with the said mechanism for actuating the roughing cutters, a vertically mounted intermi-ttingly movable shaft provided w th fingers for taking a blank from the carrier and placing it in position to be operated upon by said centering, holding and turning mechanisms, other fingers for removing the turned bobbin from the spindle, and means for detaching the bobbin from the fingers, substantially as described.

2. In a bobbin-turning machine, automat1- cally operating devices for feeding, centering and turning the blanks, a vertically mounted shaft .9 a gear loosely splined to the shaft, a reciprocating rack in engagement with said gear for rotating the shaft back and forth axially, and a cam-actuated lever for moving the shaft vertically having the latter connected with and rotatable therein, in combination with blank-placing fingers and bob bin-removin g fingers attached to and adapted to move in unison with said vertical shaft, substantially as described.

3. In a bobbin-turning machine, the combination of an adjustable endless carrier or double chain provided at regular intervals with seats for the bobbin-blanks and means for propelling the carrier intermittingly, said means consisting of a pawl-and-ratchet device adapted to be actuated and controlled by the cutter-feeding mechanism, substan tially as described.

4. In a bobbin-turning machine, the combination'with the shaft 8 and mechanism for rotating it axially back and forth intermittingly, of blank-carryin g fingers and bobbinremoving fingers, rods 8 andis' having said fingers mounted thereon, said rods being arranged'in different horizontal planes and secured to said shaft and moving in unison therewith, and means for moving the shaft endwise, whereby one set of fingers picks up a blank and places it in position while the other set of fingers is removing the last-turned bobbin from the spindle and passing it to the clearer, substantially as described.

5. In a bobbin-turning machine, thecombination with the two series of mechanlcally and intermittingly operating conveying and removing fingers, of clearer-fingers adapted JOHN M. PARKER.

WVi'tnesses:

GEO. H. REMINGTON, IDA M. WARREN. 

